Copper tile cup opening for submerged arc furnace copper tile
By designing the copper tile cup opening and the connecting pipe to be coaxially and vertically aligned, along with the surrounding structure, the problems of difficult welding of copper tiles and copper pipes and uneven contact were solved, thus simplifying the welding process and improving stability.
Patent Information
- Application Number
- CN202323251159.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2033-11-30
AI Technical Summary
In existing copper tile structures for electric arc furnaces, welding the copper tiles to the copper pipes is difficult, which can easily lead to uneven welding, leaks, or blockages, and requires highly skilled welders.
Design a copper tile cup opening with its central axis coaxially and vertically aligned with the upper end of the connecting pipe. Add a baffle at the top of the connecting pipe to form a groove shape that is high in the middle and low around the edges. The copper pipe and the inner cavity of the cup opening are conical, and the outer diameter of the baffle is smaller than the inner diameter of the copper pipe to reduce the possibility of welding wire flowing into the connecting pipe.
This reduces the difficulty of welding, prevents welding wire from flowing into the connecting pipe, ensures uniform contact between the copper pipe and the cup opening, reduces uneven welding and leakage, and improves the reliability and stability of welding.
Smart Images
Figure CN223899358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper tile accessories for submerged arc furnaces, and in particular to a copper tile cup for submerged arc furnaces. Background Technology
[0002] Currently, there are various connection methods between copper tiles and copper pipes in the electrode systems of electric arc furnaces in my country, such as: socket joint, flange clamping joint, and threaded union joint, among which the socket joint is the most common (see details). Figure 1 In most socket structures, the copper tube (40) is processed according to the drawing requirements, then bent at a certain angle (to make the internal structure of the copper tube more reasonable and increase the distance between the copper tube and the hanger to avoid interference), and then one end is welded into the cup mouth (30); the inner diameter of the cup mouth (30) should be slightly larger than that of the copper tube (40) to facilitate welding. In the existing technology, the cup mouth (30) (see details) Figure 2 The central axis coincides with the top center of the connecting pipe (20) and is set at an angle. The top of the connecting pipe (20) is flush with the bottom of the cup mouth (30). If too much brass welding wire is used during welding, the molten brass welding wire will flow down along the gap between the inner wall of the cup mouth (30) and the outer wall of the copper pipe (40). The excess molten brass welding wire will flow into the connecting pipe (20). Since the connecting pipe (20) is a straight pipe (or a near-straight pipe), some brass welding wire may even flow directly into the copper tile (10) along the connecting pipe (20), causing the copper tile (10) to (10) to (10) become damaged. 10) The water outlet at the bottom of the main body becomes smaller, and over time, scale will accumulate and cause blockage. If less brass welding wire is used during welding, the contact between the inner wall of the cup mouth (30) and the outer wall of the copper tube (40) will be uneven, which will cause water leakage at the contact point between the copper tube (40) and the cup mouth (30). Even if there is no water leakage, uneven contact will affect conductivity and, in severe cases, cause the copper tile (10) to turn red. Therefore, the existing cup mouth (30) and copper tube (40) require a high level of skill from the welding workers and the welding is particularly difficult. Utility Model Content
[0003] The purpose of this utility model is to provide a copper tile cup mouth for a submerged arc furnace.
[0004] The innovative point of this utility model is that the central axis of the cup mouth is coaxial with the central axis of the upper end of the connecting tube and is set vertically. The top of the connecting tube is higher than the bottom of the cup mouth, and a barrier is set on the outer wall of the higher part to block the molten brass welding wire. Furthermore, since both the cup mouth and the upper end of the connecting tube are set vertically, the molten welding wire is not easy to flow into the connecting tube, which reduces the difficulty of welding and helps the copper tube to make uniform contact with the cup mouth.
[0005] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:
[0006] A copper tile cup for a submerged arc furnace includes a connecting pipe, the connecting pipe being arc-shaped, the lower end of the connecting pipe communicating with the side wall of the copper tile, and the upper opening being a cup. The central axis of the cup is coaxial with the central axis of the upper end of the connecting pipe and is vertically arranged. The cup and the connecting pipe are integrally formed. A copper tube is inserted into the cup. The inner cavity of the cup is conical, wider at the top and narrower at the bottom. The top of the connecting pipe extends above the bottom of the cup, and the outer wall of the portion of the connecting pipe extending above the bottom of the cup is surrounded by a baffle. The bottom of the cup forms a groove shape that is higher in the middle and lower around the edges.
[0007] Furthermore, the outer diameter of the enclosure is 1-2 mm smaller than the inner diameter of the copper pipe.
[0008] Furthermore, the inner diameter of the top of the inner cavity of the cup opening is 1-2 mm larger than the inner diameter of the bottom.
[0009] Furthermore, the height of the enclosure is flush with the top of the connecting pipe, and the height of the enclosure is 3-5mm.
[0010] Furthermore, the height of the enclosure is slightly higher than the top of the connecting pipe, and the height of the enclosure is 3-5mm.
[0011] The beneficial effects of this utility model are:
[0012] First: The central axis of the cup opening is coaxial with the central axis of the upper end of the connecting tube and is set vertically. The molten brass welding wire is not easy to flow into the connecting tube. In addition, the bottom of the cup opening forms a groove shape with a high center and low periphery. When the copper tube is welded to the cup opening, the molten brass welding wire flows downward along the gap between the outer wall of the copper tube and the inner wall of the cup opening. Due to the setting of the enclosure, the enclosure plays a role in blocking the flow of the brass welding wire, and the molten brass welding wire will not flow into the connecting tube.
[0013] Second: Because the connecting pipe is arc-shaped, it has increased curvature compared to the traditional straight (or near-straight) connecting pipe. Even if some molten brass welding wire flows into the connecting pipe, the increased curvature will prevent the molten brass welding wire from flowing into the copper tile body's water channel and thus prevent blockage of the copper tile.
[0014] Third: Because the cup opening is vertically centered, the connecting copper tube has an increased curvature, so there is no need to bend and adjust the shape when welding the copper tube to the cup opening. Attached Figure Description
[0015] Figure 1 This is a schematic diagram illustrating the connection between the copper pipe, the copper tile cup, and the copper tile using existing technology.
[0016] Figure 2 This is a schematic diagram of the existing copper tile cup structure.
[0017] Figure 3 This is a schematic diagram of the cup opening structure of this application.
[0018] Figure 4 This is a schematic diagram showing the connection between the copper pipe, the copper tile cup, and the copper tile in this application.
[0019] In the diagram: 10 is a copper tile, 20 is a connecting pipe, 30 is the mouth of a cup, 31 is a barrier, and 40 is a copper pipe. Detailed Implementation
[0020] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0021] A copper tile cup mouth for a submerged arc furnace includes a connecting pipe 20, which is arc-shaped (generally bendable into a 1 / 4 arc shape). The lower end of the connecting pipe 20 is connected to the side wall of the copper tile 10, and a cup mouth 30 is provided at the upper opening. The central axis of the cup mouth 30 is coaxial with the central axis of the upper end of the connecting pipe 20 and is vertically arranged. The cup mouth 30 and the connecting pipe 20 are integrally formed. A copper tube 40 is inserted into the cup mouth 30. The inner cavity of the cup mouth 30 is conical, wider at the top and narrower at the bottom. The top of the connecting pipe 20 is higher than the bottom of the cup mouth 30, and a baffle 31 is provided on the outer wall of the part of the connecting pipe 20 that is higher than the bottom of the cup mouth 30. The bottom of the cup mouth 30 forms a groove shape that is higher in the middle and lower around the edges.
[0022] Furthermore, when the copper tube 40 is welded to the cup mouth 30, the molten brass welding wire flows downward along the gap between the outer wall of the copper tube 40 and the inner wall of the cup mouth 30. Since the baffle 31 is set, the baffle 31 plays a role in blocking the flow of the brass welding wire, and the molten brass welding wire will not flow into the connecting pipe 20.
[0023] Furthermore, since the connecting pipe 20 is a 1 / 4 arc shape, it increases the curvature compared to the traditional straight connecting pipe 20. Even if some molten brass welding wire flows into the connecting pipe 20, the increased curvature of the connecting pipe 20 will prevent the molten brass welding wire from flowing into the water channel of the copper tile 10 body and will not block the copper tile 10.
[0024] Furthermore, the outer diameter of the enclosure 31 is 1-2 mm smaller than the inner diameter of the copper pipe 40.
[0025] Furthermore, the inner diameter of the top of the inner cavity of the cup opening 30 is 1-2 mm larger than the inner diameter of the bottom.
[0026] Furthermore, the height of the enclosure 31 is flush with the top of the connecting pipe 20, and the height of the enclosure 31 is 3-5mm.
[0027] Furthermore, the height of the enclosure 31 is slightly higher than the top height of the connecting pipe 20, and the height of the enclosure 31 is 3-5mm.
[0028] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A copper tile cup mouth for a submerged arc furnace, comprising a connecting pipe (20), characterized in that: The connecting pipe (20) is arc-shaped. The lower end of the connecting pipe (20) is connected to the side wall of the copper tile (10), and a cup mouth (30) is provided at the upper opening. The central axis of the cup mouth (30) is coaxial with the central axis of the upper end of the connecting pipe (20) and is vertically set. The cup mouth (30) and the connecting pipe (20) are integrally formed. A copper pipe (40) is inserted into the cup mouth (30). The inner cavity of the cup mouth (30) is a cone shape with a larger upper part and a smaller lower part. The top of the connecting pipe (20) is higher than the bottom of the cup mouth (30), and a barrier (31) is provided on the outer wall of the part of the connecting pipe (20) that is higher than the bottom of the cup mouth (30). The bottom of the cup mouth (30) forms a groove shape with a higher middle part and a lower surrounding part.
2. The copper tile cup mouth for a submerged arc furnace according to claim 1, characterized in that: The outer diameter of the enclosure (31) is 1-2 mm smaller than the inner diameter of the copper pipe (40).
3. The copper tile cup mouth for a submerged arc furnace copper tile according to claim 1, characterized in that: The inner diameter of the top of the inner cavity of the cup mouth (30) is 1-2 mm larger than the inner diameter of the bottom.
4. The copper tile cup mouth for a submerged arc furnace according to claim 1, characterized in that: The height of the enclosure (31) is flush with the top of the connecting pipe (20), and the height of the enclosure (31) is 3-5mm.
5. The copper tile cup mouth for a submerged arc furnace copper tile according to claim 1, characterized in that: The height of the enclosure (31) is slightly higher than the top height of the connecting pipe (20), and the height of the enclosure (31) is 3-5mm.